.ext-ux-youtubeplayer.x-hide-offsets {
    left:-10000px!important;
    top:-10000px!important;
}

.ext-ux-youtubeplayer {
    background-color:#000000;
}

.ext-ux-youtubeplayer.strict {
    position:relative;
}

.ext-ux-youtubeplayer.stretch {
    position:static;
}